It's easy to use and it's accurate.Just be sure to check the waterline calibration before you use it and make sure your coolant or battery acid is at roughly the same temperature as the distilled water you used for the waterline calibration.Click Here to see more reviews about: Robinair 75240 Coolant and Battery Refractometer
Product Description:
- This model can be used for measuring the freezing point of either propylene or ethylene glycol based cooling systems. It can also be used for checking the strength of electrolyte solution batteries. This precision instrument features high-quality optics with ultra smooth focusing. Scale range: 32 F to -60 F.
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